https://devzone.nordicsemi.com/f/nordic-q-a/9584/want-to-have-5-channels-pwmkit: RF51DK. sdk:nRF51_SDK_8.1.0 SoftDevice:s110_nrf51_8.0.0_softdevice.hex I want to use 5 channels pwm to control 2 servos and 1 motor;each servo uses 2 channels pwm,so I must use 5 channels pwm. My way is below: app_pwm_config_t pwm1_cfgen-USTelligent Community 13Tue, 06 Oct 2015 13:34:37 GMThttps://devzone.nordicsemi.com/thread/35404?ContentTypeID=1Tue, 06 Oct 2015 13:34:37 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9a575724-171a-4aaf-b5eb-2eb7e8d166f0Anders Strand<p>Hi. In nRF51, you can have 2 channels per timer, which makes 4 the total amount of PWM channels you can use. APP_PWM_DEFAULT_CONFIG_3CH is not a valid setting, which is why you are returned an error.</p> <p>In our next product, the nRF52, you have up to 12 separate pwm channels available.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/35403?ContentTypeID=1Tue, 06 Oct 2015 09:58:53 GMT137ad170-7792-4731-bb38-c0d22fbe4515:fabf0701-c5dc-4aa8-8d0a-551d0e8edb7bWojtek<p>I am afraid nRF51 is not the best choice for that , as it doesn&#39;t have hardware PWM. It would be hard to generate 5 different PWM channels and run BLE concurrently (if You want to use BLE)</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/35402?ContentTypeID=1Tue, 06 Oct 2015 08:21:05 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0acf3964-ad31-47a0-a81a-30adace77150snowbeans<p>I have saw <a href="https://devzone.nordicsemi.com/question/46908/is-it-possible-to-make-5-pwm-outputs-on-nrf51422-or-nrf51822/">devzone.nordicsemi.com/.../</a> , but it does not solve my problem.</p><div style="clear:both;"></div>